Portable cooler



FIG. 1 is a perspective view of a portable cooler, showing the front and one end of our new design.

FIG. 2 is a side view of the end opposite that shown in FIG. 1.

FIG. 3 is a rear view of the portable cooler.

FIG. 4 is a top view of the portable cooler.

FIG. 5 is a bottom view of the portable cooler.

The strap and rivets shown in broken lines in FIG. 1 are solely to illustrate the environment of use of the portable cooler, and form no part of the design thereof. 

The ornamental design for a portable cooler, as shown and described. 